/[escript]/trunk/doc/examples/usersguide/heatedblock.py
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Contents of /trunk/doc/examples/usersguide/heatedblock.py

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Revision 3667 - (show annotations)
Tue Nov 15 23:29:23 2011 UTC (7 years, 7 months ago) by gross
File MIME type: text/x-python
File size: 2050 byte(s)
better consistence of script and notation
1
2 ########################################################
3 #
4 # Copyright (c) 2003-2010 by University of Queensland
5 # Earth Systems Science Computational Center (ESSCC)
6 # http://www.uq.edu.au/esscc
7 #
8 # Primary Business: Queensland, Australia
9 # Licensed under the Open Software License version 3.0
10 # http://www.opensource.org/licenses/osl-3.0.php
11 #
12 ########################################################
13
14 __copyright__="""Copyright (c) 2003-2010 by University of Queensland
15 Earth Systems Science Computational Center (ESSCC)
16 http://www.uq.edu.au/esscc
17 Primary Business: Queensland, Australia"""
18 __license__="""Licensed under the Open Software License version 3.0
19 http://www.opensource.org/licenses/osl-3.0.php"""
20 __url__="https://launchpad.net/escript-finley"
21
22 from esys.escript import *
23 from esys.escript.linearPDEs import LinearPDE
24 from esys.finley import Brick
25 from esys.weipa import saveVTK
26 #... set some parameters ...
27 lam=1.
28 mu=0.1
29 alpha=1.e-6
30 xc=[0.3,0.3,1.]
31 beta=8.
32 T_ref=0.
33 T_0=1.
34 #... generate domain ...
35 mydomain = Brick(l0=1.,l1=1., l2=1.,n0=10, n1=10, n2=10)
36 x=mydomain.getX()
37 #... set temperature ...
38 T=T_0*exp(-beta*length(x-xc))
39 #... open symmetric PDE ...
40 mypde=LinearPDE(mydomain)
41 mypde.setSymmetryOn()
42 #... set coefficients ...
43 C=Tensor4(0.,Function(mydomain))
44 for i in range(mydomain.getDim()):
45 for j in range(mydomain.getDim()):
46 C[i,i,j,j]+=lam
47 C[i,j,i,j]+=mu
48 C[i,j,j,i]+=mu
49 msk=whereZero(x[0])*[1.,0.,0.] \
50 +whereZero(x[1])*[0.,1.,0.] \
51 +whereZero(x[2])*[0.,0.,1.]
52 sigma0=(lam+2./3.*mu)*alpha*(T-T_ref)*kronecker(mydomain)
53 mypde.setValue(A=C,X=sigma0,q=msk)
54 mypde.getSolverOptions().setVerbosityOn()
55 #... solve pde ...
56 u=mypde.getSolution()
57 #... calculate von-Misses
58 g=grad(u)
59 sigma=mu*(g+transpose(g))+lam*trace(g)*kronecker(mydomain)-sigma0
60 sigma_mises=sqrt(((sigma[0,0]-sigma[1,1])**2+(sigma[1,1]-sigma[2,2])**2+ \
61 (sigma[2,2]-sigma[0,0])**2)/2. \
62 +3*(sigma[0,1]**2 + sigma[1,2]**2 + sigma[2,0]**2))
63 #... output ...
64 saveVTK("deform.vtu",disp=u,stress=sigma_mises)
65

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svn:mergeinfo /branches/lapack2681/doc/examples/usersguide/heatedblock.py:2682-2741 /branches/restext/doc/examples/usersguide/heatedblock.py:2610-2624 /trunk/doc/examples/usersguide/heatedblock.py:1388-2483

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